Photoactivated luminescence in self-aggregated CdSe/ZnS quantum dot ensembles on dielectric support under laser excitation

摘要

Photoluminescence of CdSe/ZnS quantum dots may be orders of magnitude enhanced varying geometry and polarization of excitation and sizes and shapes of their self-assembled units. We show that this effect is accompanied by dramatic decrease of quantum dots mean photoluminescence life times and propose a roadmap for creation of nanosructures with advanced optical properties.